Improvement in bellows-pumping apparatus



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. Leners Paten@ No. 81,930, ma September s, 1868.

IMPROVEMENT iIN BELLOWS-PUMPING APPARATUS.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, SrMoiv MOTTE, of Paris, in the Empire of France, have invented a new and useful Improvement in Pumping-Machines for emptying ditches, cess-pools, wells, drains, dto.; and I do hereby declare the following to be a full, clear, and exact description thereof, suicient-toenable others'skilled in the art to which the invention appertains to fully understand and use the same, reference being had to the accompanying drawing, which is made a part of this specification, and in which- Figure 1 is a plan of a machine illustrating my invention.

Figure 2 is a vertical central longitudinal section of the same.

Similar letters of reference indicate corresponding parts in the severalvigures.

The subject of this invention is a machine designed principally for draining and emptying cess-pools, said machine consisting essentially of a pair of bellows-pumps operated by a single lever, and communicating in common with the inlet and outlet-ducts, so that while one pump is receiving the other is discharging, and thus a constant, unintermittent operation is maintained.

Before the practical application of-such machines, as originally designed, to the very diiiicult work of draining and emptying wells and cess-pools, was successfully accomplised, they necessarily underwent considerable alterations, and the present invention has reference to certain, apparently small changes in the construction of the machine, which nevertheless materially increase its eh'iciency.

This pump in its-peculiar work must unavoidably draw within it various substances, such as pieces of glass, of bones, of cloth, of earthenware, of fruit-stones, other stones, wood, Src., &c., generally deposited in privies and cess-pools. I

The accumulation of these substances in the body of the pump has often stopped its action, and by no contriva-nce, prior to this invention, could the-hand be conveniently introduced therein to remove the matter. Under the old construction the'valves were so arranged as to be liable to derangeme'nt, -both in consequenceoi` the undue accumulation, and by the action of the piston or vibrating lid.

In ,the accompanying drawing, A may represent a stout frame, supporting the two fan or bellows-pumps B B, to the vibrating pistons or lids B B of which is connected the lever D, which is operated by hand.

.The movement of the lever D clevates one of the pistons B', and depresses the other simultaneously, hence, while the chamber of one pump is filling with matter passing upward into the same through the conductingtube C, matter previously pumped up is ejected from the other chamber through its exit-opening b, which communicates with the discharge-.tube E. The inlet-openings of the pumps are guardedwith valvesl c c', to prevent the reflux of the pumpedmp matter. The valves c c are seated in depressions suiiicicntly below the bottom plates of the pumps to escape injury from the impingement of the pistons B B.

Each pump is made air-tight, except at the points where the matter is received and discharged, by a rubber or leather diaphragm, @which is clamped by screws between the two plates forming each piston Bu, and which is conned to the marginal ange of the body B of the pump, by means of a rim, F, of cast iron, (of which material the pump proper may be made,) and a number of screws, e e e.

Each'piston B is formed with an axis, upon which to vibrate, the same having a suitable bearing, 62, at the extremity of the body of pump B. i

G G are openings extending entirely through the piston B B', and the diaphragm a, and permitting the hand to be introduced into the chamber of either pump, for the removal of accumulated matter. When the machine is at work, the openings G are. closed by lids or 4covers G', each being readily removable, as it is secured by only two screws g g. The covers G may have a facing or packing of rubber, in order to secure a tight joint. The openings G constitute a ready means of access to the interior of the pump for the removal of accumulated yfilth, and obviate the necessity of forming a tap-hole in the side of the pump. The eiect of the undue accumulation of matter in the pump B has been not only to impair or destroy its etciency in operation, but to dis join and derange the parts, especially the rim F, whose screws e are liable to rust. When the parts are thus deranged, it is diicult to again put the machine in working order, as the screws will not h'old eifectively.

By affording increased facility foi' preventing injurious accumulation within the pump, I am enabled to reduce-the number of screws e," eighteen being, under my imprcved construction, a. sucient number Having thus described my invention', what I claim as new herein, ainddesire to secureby Letters Patent, is-

.`l. A'bell'oWs-pump having a. depressed valve in its stationary bese-plate, and a. removable cover in its .vibrating piston or lid, all substantially as shownY and described.

2.-'A beiiovsrs-pump in which the iuid is received and disciiai'ged from near the end opposite thevaxis of vibration, by means of the piston B', through continent pipes, substantially as described.

Y SIMON MOTTE/W Witnesses:

F. OLcoTT,

DAVID S.VFULLER. 

